Belt-fastening machine



May' 8, 1923.

' R. S. MOORE f BELT FASTENING MACHINE Filed April 18 1922 SMZZENTOR .ATTORNEY ?atented May f3, i923.

tata@- ears l R. SHERTEAN ROORE, 0F CINCINNAT, OHIO. 'p

BELT-FAS'IENING- MACHINE.

Application iled April 18, 1922 Serial No. 554,506.

To all whom it may coa-oem:

Be it known that l, R. SHERMAN MOORE,-

a citizen of the United States, residing at Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Belt-Fastening Machines, of which the following is a specification.

My invention relates to devices for applying fasteners to the ends of belts used for transmission of 'power'. Its object is to apply the fasteners quickly and easily, by s imple mechanism, to belts of different thicknesses as well as of different widths. Other objects will appear inthe course of the en-l suing description. i n

l attain these objects by the device illustrated, for example, in the accompanying drawing, in which- Figure l is a plan view of the device, opened for reception of the fasteners rand the belt; l

l Fig. 2 is a side elevation of the same, the position of the belt operated upon being indicated by dotted lines, and parts of the machine also having their closed or pressing positions indicated by dotted lines;

Fig. 3 is a front elevation of the same, in closed or pressing condition;

Fig. 4 is a partial side elevation of the rear part of the machine, showing the positions of the rear operating parts when the machine is in closed or pressing condition;

and i Fig. 5 is a detail perspective view of the' F secured to these struts 3.and 4 by bolts 6;

and these plates 5 project forward from this yoke l and are tied together near their front ends, at the bottom, by a strut-rod 7, reduced at its ends to go through the plates 5 and receiving nuts on its outer ends clamping the plates 5. The upper edges of the plates 5 form ears 8 above the front struts 3 ofthe yoke 1; these edges sloping to the rear and front ends of the plates from these ears. The bearing bar 9 extends across between the ears 8, reduced at its ends'to go through the ears and receiving nuts 10 on the ends, clamping the ears 8 and thus acting as a strut at the top like the strut-rod 7 at the bottom.V lThus a rigid frame is made up.

1Where the reduced ends 'ofthe bar '9V go through the ears 8 they are flattened at 9 v to prevent turning of the bar 9; and this bar is square in its middle partto receive the clip-holder supports 11 secured to the bearing bar 9 about half way in toward the middle from respective sides of the frame, withl theirv forward ends vertical and having T- slots 12v transversely through-them, opening out through the forward ends. vPreferably, these supports A11 are `made in upper and lower halves to facilitate cutting'the T-slots 12; and ythese halves have rear flanges over and underl the square part ofthe bary 9, secured thereto by bolts 13 through the bar and flanges.

At'respective sides of the frame, spaced in from the side plates 5, the lower levers 14 have ears 15 upwardly projected and embracing round parts ofthe bearing bar 9 to turn thereon. The upper levers 16V similarly have ears 17j projected down and embracing these round parts of this bearing bar 9, between the respective lower lever ears15 and the 'adj acent side plates 5. Each lever has a front arm projecting forward' from its fulcrum, and a rear arm projecting backward therefrom. The rear arms 18 of the lower levers-14 bend outward and the vrear arms 19 of the upper levers 16 bend in- The yoke 1 is made with two parallel ribs i 1 lextending forward from ythe pedestal 2 to the front strut 3, and down from'the pedestal 2 to the rear strut 4, and connected by these struts at their ends; andv on top of the pedestal 2, alined with these ribs 1 are the two bearing heads 20 with caps 21 withA a clear space between them.4 `The crank-shaft 22 has the lever head 23 at its middle and the two-arm cranks 24 at its ends,this head and these cranks preferably being integral with the shaft, which is journaled in Vthe bearing heads 20, vunder thecaps 21, held down by screws 25. The lever-head 23 occupies the space between the headsy 20, yand j the cranks 24 lie immediately outside the respective heads. Ashere shown, the two arms of each crank 24 extend at an angle of andthe cranks are alinedwith each other. rlilacli crank arm hasx an opening near its end. The lever-head 23 extends almost vertically downward whenthe crank arms remote therefrom` Iare ext'ending"verti-v` cally upward, and has a taperedy opening receiving the tapered shank of the handle` lever 26, held in the head23lby a nut 27 on a threaded extension of the lever; so that the lever 26 extends backward and upward links 28 lie inward from the arms 18, and' have small offsets 29`spac`ing their main parts in from the arms 18. Toggle links 30 have pivot lugs 'in the openings of the upper lever arms 19, and alsohave pivot lugsl in the Aopenings of the other arms lof the respective cranks 24. These other links v30 curve over the links`28, with webs"31 connecting the legs ofthe curves, for; strength; 'these webs occupying the spaces left by spacing the links 28 inward as just described. This -allows the crank element 24 to draw the arms 18 and 19 very close together without interference of the links 28 and 30 with each other, although these links move in the same vertical plane i VIJllhus, a very'compact construction is had, with a long'range of action for the togge' This relation of the links is clearlyz device. shown in Figs. 2'and 5; the latter view showing the inn'er sides of the links used at the'left,-or as seen in the upper part of the plan view in Fig. 1". The positions of Darts just described are thosefor the open machine, with the front lever 'a'rms'32 and 33 of the lower and upper levers 14 and 16, respectively, vwidely separted. As here shown, rotation of thel crank-shaft 22 through 150O brings these front 'arms and 33 nearest together,'by separating' the rear arms 18 and 19 to their greatest extent, with the links 28 and 30 radialto the shaft.

The lower jaw 34 is a rectangular bar gained on its' bottom to t' onv the arms 32 withgshoulders against the inner sides of the arms; being held to the arms by screws 35 through the arms into `the aw. The upper jaw 36A is a similar rectangular bar, but gained o'n its frontedge, up and down,v with the'reduced end parts sliding snugly in 'recesses opening down throughthe lower sides of thev respective upper arms 33. The 'upper end of each recess is beveled downward and outward toward the respective side of .the machine; The shoulders 37 thus formed by the gains across the front of the upper jaw 36 fit slidingly against the inner sides of the arms lfins 38gprojec`t out from'the ends of the jaw 36, outside the arms 33; and spring-prongs 39, fastened on the rear outsides'of the `levers 16, project forward under these pins 38, yieldingly holding the aw 36 up in thearms 33.

Mounted on top of the jaw 36 are blocks 4() with straight *inner ends 41 and outwardly and downwardly inclined tops, forming wedges 42 projecting out into the re spective recesses, between the'arms 33'and the jaw 36, with the tapered or inclined tops up against the beveled tops of the recesses. These blocks 40v have small inverted U- shaped saddles over their inner end parts, with cheeks 43 projecting down along the front and .rearsides of the jaw, to guide the wedges 42 in their inward'or outward movement. .0n the top of the jaw 36, at its middle part, the turning-head or knob 44 is j ournaled on' an upright Vscrew 45v in the top, andhas opposite crank-pin recesses in its bottom. Links 46 have pins 47 projecting` up into these recesses; these links lying under the header knobY 44 and projecting out in opposite directions to connect with respective ones of the blocks '49 `by pins 48 projecting up into recesses inthe bottoms of the inner end parts 41 of the blocks, which bottoms are cut away or gained to receive these links thereunder (Fig. As shown (F ig. 1)v the` links are so arranged that turning the knob or head 44 to the right forces the wedges 42 outward; which thus force the jaw 36 downward in the lever arms 33, toward the lower 34, against the pressure of the spring-prongs 39. rlChe taper of .the wedges 42 is very low, so that they remain in their outward adjustments by friction, not requiring any fastening for the knob or head 44 to prevent its turning. HouVH ever, such fastenine` may be provided without departing from my invention.

The belt-Support 49 a transverse bar with downward extensions at its ends; these extensions 50 embracing the strut-rod 7 yclose to the innerI sides of the plates 5 and allowing the support 49 to be swung forward and downward, or upward .until the top of the support is a short distance below the horizontal center line of the fulcrum of the lekkers 14 and 15 on the bar 9. Fixed 'to each adjacent side plate 5, on its inner side, is a spring plate 51, with an offset so that it extends along the inner side of the belt-support extension 50,; the latter having a recess, and the plate 51 having a detent 52 springing into this recess'as the support is 'brought to upright position. The near edge of the extension 50 is beveled at 53, so that the end of theA spring-plate 51 ridesonto thev inner side of the extension during lli!) the approach. Thus the support is auto-l matically fastened in position; but may easily 'be unfastened for swinging forward and downward, out of the way when the clip-holder 54 is to be inserted in the supports 11.

This clip-holder preferably is substantially as disclosed and claimed in my copending 'appplication Serial No. 479,679, filed June 22, 1921, in having a series of notches particularly adapted for holding wire clips such as my clip therein shown. However, any suitable holder for any desired clips may be employed, when equipped to be held in the supports 11. As here shown, the holder 54 has upwardly and downwardly projected flanges 55 at its back, and is slipped endwise into the lslots 12 with the flanges 55 in the upper and lower members of the slots, respectively, and the notches 56 of the holder 54 opening forwardly to receive the clips 57 similar to those above mentioned. These clips 57 are held in the holder by a long slender pin 58 passing transversely through the teeth of the holder, across the intervening notches, and the upper and lower members of the clips diverge forward above and below the belt end 59 slipped therebetween while supported on the support 49 (Fig. 2), and stopped against the front edges of the clipholderv teeth; so that when the aws 34 and 36 come together the clips 57 will be closed and their prongs will be pressed through the belt and clinched therein. To permit some adjustment of the clip-holder 54 up .y and down when the jaws 34 and 36 close on the clips and belt, the i'slot parts are made` slightly wider up and down than the holder flanges 55, and the front opening of the slot also is slightly wider than the body of the holder up and down; but preferably the flanges have a snug sliding fitfin the T slot parts to keep the holder 54 from tilt-l lbout midway from front to rear of the pedestal 2 a post 60 is formed thereon, with a vertical guide slot I61 in its rear side; the pedestal 2 being open at the bottom from this post backward. This slot 61 is adapted to form a guide for a rack 62, shown by dotted lines in Figs. 1 and 2, with teeth facing backward and in mesh with teeth of a pinion 63, only p'art of which is indicated, by dotted lines. This pinion is fixed on the crank-shaft 22 in place of the lever-head 23 and lever 26 to make the machine foot-operated or powersoperated, ac cordingly as a treadle or suitable power motive apparatus is operatively connected tothe rack 62, preferably below the machine; neither of these devices being illustrated herein. The top of this post 60 is the forward stop for the lever 26.

A gang of clips 57, in the holder 54, being mounted in they *li-slot' of the holderf'll, `the belt support 49 being swung forward and downward to aord free access for this placing of the clips by insertion ofthe holder 54 endwise from either side of the machine into the T-slot, the belt-support 49l then is swung up and latched in place by the spring plate 51 as before mentioned. The end of `the belt 59 then is placed on the support 49 with its end between the upper and lower clip members and back squarely against the front of the clip-holder 54.v Duringthese operations the handle-lever 26 1s swung farthest back as seen in Figs. l and 2holding the jaws 34 and 36 wide apart. Then the handle-lever 26 is pulled forward, closing the jaws and effecting the fastening of the clips 57 in the belt. Now the greatest pressure, for a given pressure at the handle of the lever 26, is exerted by the jaws 34 and 36'when the pivotal connections of the toggle-links 28 and 30 to their respective crank arms and-levers are in radial aline-y ment relatively to the center of the crankshaft 22, as seen in Fig. 4; and thus itis closing and fastening operation coincidel with this alinement of these links. By mak* ing one of the jaws, as `the upper jaw 36, adjustable toward andaway from the other jaw, as by the wedges '42, anybelt of any thickness within the range ofthe machine may have the closing operation completed on it with' this coincidence, as well as with the faces of the jaws 34 and 36 parallel and normal to thev opposite .parallel surfaces of the belt. This is provided for, preferably, by inserting the vbelt and closing and adjusting the jaws thereto before the clips are inserted in their position withtheir holder. Then the 'jaws are opened, the clips inserted in their holder, and the jaws closed thereon with thev adjustment given to them `by the wedges 42. But this adjustment can be given at any stage, so'as to insure Aa combination lof the two important advantages of parallelism of the j'a'wv faces 'and alinel` ment of the links radially.

Modifications other than those instanced herein may occur, and therefore, while cer-v tain constructional details are deemed preferable in connection with my invention, and.l l have shown rand described these rather specifically in elucidating the construction and use of my invention, as is required, 1

do not wish to be `understood as being limited to such precise showing and description,

but having thus fully described my inven# tion, what 1 claim as new and desire to secure byLetters Patent is:

1. In a beltsfastening machine, a pair of jaws having faces of substantial longitudinal and transverse dimensions, means for positioning belt fasteners between said aws, one jaw mounted to swing toward the other,

90 highly desirable that thev end of the clip operating means to swing said jaw, and a wedge for moving said jaw rectilinearly to variously space said jaws with both dimensions in parallel relation coincident with the maximum closing exertion of said operating. means on said jaw.

2.A in a belt-fastening machine, a pair oi' ulcrumed elements, jaws mounted on thc respective elementsto swing toward each Yotherwith said elements, a crank element,

links connectingy the respective ulcrumed elements tocircumterentially remote parts of said crank element, to bringv said jaws toward each other by rotation of said crank element until said links are radial to said c ing slidahlymonnted on said pair oi arms,

wedges enteringbetween said jaw and the respective arms, and means for moving,` said wedges in opposite directions in unison.

5. In a belt-fastening machine, a pair of jaws, a pair of arms, one of said aws being slidably mounted on said pair ot arms, wedges entering` between said jaw and the respective arms, rotary means onr said jaw, lin rs connecting-7 circumterentially remote parts oi said rotary means and said wedges.7 and yielding,` means holding toward said wedges.

6. In a belt-fastening machine. a pair oi jaws, a bar on which one. jaw is mounted to swing` toward the other jaw, a holder support fixed 'on said bar and having. a slot opening; out between said jaws, and a rasees@ clip-holderhaving` flanges4 engaging, in said ii-slot.

7. in a belt-fastening machine, a pair of crinned elements, jaws mounted on the Liective elements, a crank element and a a lever +Le cli re iever-head integrally connected, liked in said head, and links connecting respective tulcrumed elements to circuitferentially remote parts or" said crank ele- Ament, to bringsaid jaws toward each other or' said crank elementto bringsaid jawsi toward each other byrotation of saidk crank` element, one of said links being. curvedr around the other link and having a web connectino, they members of the curve, and the other linkbeing oiiiset to pass along;- side said web.

10. in a belt-fastening machine, a pair ot ulcrinned elements, jaws mounted on the respective elements, a crank element, links connecting the respective fulcrumed elements to circumterentially remote parts oi said crank element, to bring` said jaws toward each other by rotation of said crank element, a lever connected to said crank element, a stop for saidulever, and a guide on said stop for a rack tomesh with a pinion fixed to said crank element in place of said lever.

It. SHERMAN MOOR E. 

